- A.M. Simpkins & Associates (AMSA)
- AArete
- Affinaquest
- AGATI
- Airgas
- Alpha Building Corporation
- America To Go
- American Education Supply
- American Express
- AMQ
- Anthony James Partners
- Anthony Travel
- Antos Environmental
- Apogee
- Aries Building Systems
- Arrow Payments
- Avantor
- Avantor
- AVI-SPL (Formerly SKC Communications)
- B&H Photo Video
- Batteries Plus Bulbs
- Bottom Line Concepts
- CampusWorks
- Canteen
- Carahsoft Technology Corp.
- Carrier Corporation
- Carrier Enterprise
- CDW-G | Cloud Services
- CDW-G | Computer Equipment & Related Hardware, Software, Services & Support
- Chartwells
- Civic Initiatives
- Claridge
- Clearspan
- Collaborative Solutions
- Collegiate Travel Planners
- Columbia Advisory Group (CAG)
- Complete Book and Media Supply
- Connection® Public Sector Solutions | Computer Equipment & Related Hardware, Software, Services, & Support
- Connection® Public Sector Solutions | IT Managed Services
- CORE | Construction Management at Risk (CMAR)
- CORE Construction
- Core Health and Fitness
- D2L Ltd.
- Deloitte
- Demco, Inc.
- Drivestream, Inc
- ENA Services
- Enterprise Fleet
- Enterprise Holdings Inc (Enterprise Car Rental)
- EqualLevel, Sponsored by E&I
- eShipGlobal
- Falcon
- Ferguson
- FieldTurf
- Filtration Concepts
- Gilbane – Construction Management at Risk (CMAR)
- Gilbane Building Company
- Global Furniture Group
- GovDeals
- Grainger
- Guest Supply
- HelioCampus
- Henry Schein, Inc. – Dental Supplies
- Hightower Group
- Hilco IP Services, LLC d/b/a Hilco Streambank
- HireRight
- HITT Contracting
- HPC International
- Humanscale Corporation
- Huron
- IM Supply
- Interface
- Irwin Seating Company
- IVCi, LLC
- JAGGAER
- Jamail & Smith Construction
- JMI Sports
- Jonti-Craft
- Kennedy & Company
- LabRepCo
- Legend Labs
- Levy Restaurants
- Lowe’s
- Mannington Commercial
- Max-R
- Medline Industries, LP – Medical/Surgical/Athletic Supplies
- Medline Industries, LP – Pharmaceuticals and OTC
- Milliken Services
- MityLite, Inc.
- Mobile Modular
- Mohawk Group
- Moving Minds
- Mythics, Inc.
- NAPA
- NEOGEN
- Nikon Instruments, Inc.
- Nouveau Construction and Technology Services
- NuAire
- Ouriginal
- Patterson Dental
- PaymentWorks
- PHC Corporation
- Pitney Bowes – Shipping & Mailing
- PPG Paints
- Proctorio
- Procurex
- Pure Air
- Safe Health Systems
- SAP Concur
- Sargent Welch
- Sauder Education
- Schindler Elevator Corporation
- Sedia Systems
- Sherwin-Williams
- SIRVA Worldwide
- Slalom, LLC | General Consulting Services
- Slalom, LLC | Online Learning Consulting
- Smith System Manufacturing Company
- Southwest Contract
- Specialty Underwriters
- SSC | Custodial Services
- SSC | Facilities Maintenance
- SSC | Landscape Maintenance
- Standard Textile
- Staples
- Staples Promotional Products
- Steelcase, Inc.
- STERIS
- Strata Information Group (SIG)
- Sunbelt Rentals
- Tarkett USA Inc.
- The Baker Company
- Transformations Furniture
- Tremco/Weatherproofing Technologies, Inc.
- UniGroup
- Unimarket
- United Rentals
- University Sleep Products
- VESTA Modular
- Ward’s Science
- Waters Corporation
- Wayne’s Roofing
- Wheels Labs
- Workday, Inc.
- Worldwide Sourcing Group
- Xerox
